SPIRAL DRILL-AND-BLAST CONCEPT MAY SPEED UP TUNNELING ADVANCE RATE

Principles and self-shielding nature of concept are explained, and prototype of spiral blast machine is described. Operational experience and test results of shield performance are evaluated.

• Corporate Authors:

  American Institute of Mining, Mettalurgy & Petroleum Engineers

  345 East 47th Street
  New York, NY  United States  10017
• Authors:
  • Peterson, C R
  • FISK, A T
  • BROOKS, R E
  • Olson, J J
• Publication Date: 1977-6

Media Info

• Features: References;
• Pagination: p. 29-32
• Serial:
  • Mining Engineering
  • Volume: 29
  • Issue Number: 6
  • Publisher: American Institute of Mining, Mettalurgy & Petroleum Engineers

Subject/Index Terms

• TRT Terms: Drilling; Excavation; Excavation and tunneling; Presplitting (Blasting); Shields (Tunnels); Tunneling; Tunneling machines
• Old TRIS Terms: Excavation technology; Shields (Tunneling); Tunnels and tunneling
• Subject Areas: Bridges and other structures; Construction; Highways;

Filing Info

• Accession Number: 00165233
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Dec 27 1977 12:00AM